Reliability Distribution

About Failure History By Asset

The Failure History By Asset plot allows you to determine patterns in the failures such as if they are occurring at random, or close together, or more frequently over time. You can view a timeline that shows when each failure occurred for an asset if the data for an analysis contains failure dates for one or more assets. If the data for an analysis contains failure dates for one or more pieces of equipment, you can view a timeline that shows when each failure occurred for each piece of equipment.

Note: Interaction with charts is not available on touch-screen devices.

Details

For each piece of equipment included in your analysis, Failure History By Asset shows when each failure occurred. The pieces of equipment are listed along the y-axis of the timeline. Dates are listed along the x-axis. The timeline illustrates the general distribution of failures over time for the pieces of equipment included in the analysis. It can also be used as a tool for identifying which pieces of equipment do not fit the normal failure distribution pattern. The timeline is not intended to provide specific information about failures and dates.

The range of dates displayed along the x-axis is determined by the failure dates that exist. The timeline will always include all failure dates, including those that occurred outside the Analysis Period.

The start date of the analysis period is always designated on the timeline by a green line. If the start date is the same as the first failure date, the green mark will appear directly on the y-axis. The end date of the analysis period is indicated on the timeline by a green line if it is set to a specific date. The end date is not shown on the timeline if you have selected I want to use today's date as the end date for this analysis.

About Site Filtering in Reliability Distribution Analysis

In Reliability Distribution Analysis, the site is assigned based on the user's selection in the Site control.

Tip: For more information, refer to the Site Filtering section of the documentation.

Data for the analysis can be generated by a query that contains records from multiple sites. Analyses that are created for a single site and that are based on a query containing multi-site data will contain multi-site data. A single-site user with access to the analysis can open the analysis and view all of the multi-site data in an analysis.

A user that has been assigned, at a minimum, to all of the sites that are associated with the records queried by the analysis will have full access to modify the analysis. If this user reloads the analysis, the query will return data based on the sites that were assigned at the time the analysis was created.

A user that has not been assigned to all of the sites that are associated with the records queried by the analysis will be able to view the analysis, but will not be able to reload or edit the data.

Consider an organization that has three sites, Site X, Site Y, and Site Z. The following Reliability Distribution Analysis records exist:

  • Reliability Distribution Analysis A: Assigned to Site X
  • Reliability Distribution Analysis B: Assigned to Site Y
  • Reliability Distribution Analysis C: Assigned to Site Z
  • Reliability Distribution Analysis D: No site assigned (global record)

Scenario 1: User assigned to only Site X

This user will see Reliability Distribution Analyses A and D.

Scenario 2: User assigned to both Site X and Site Y

This user will see Reliability Distribution Analyses A, B, and D.

Scenario 3: Super User

This user will see Reliability Distribution Analyses A, B, C, and D.

Important: If a Super User modifies the site assignment of a child record from the site assignment that it inherited from a parent record, data integrity will be compromised.

Reliability Distribution Analysis Data Model

The following diagram shows how the families used in Reliability Distribution Analysis are related to one another.

Note: In the diagram, boxes represent entity families and arrows represent relationship families that are configured in the baseline database. You can determine the direction of the each relationship definition from the direction of the arrow head: the box from which the arrow originates is the predecessor, and the box to which the arrow head points is the successor.

In the above image, the Distribution box represents one of four Distribution subfamilies in which records can exist: Exponential, Lognormal, Normal, or Weibull. When you create a Distribution record using the Reliability Distribution Analysis workflow, the specific family to which that Distribution record will belong will depend on the distribution type that is selected in the Time To Failure Distribution or Time To Repair Distribution section.

As you develop a Reliability Distribution Analysis, you will create records in these families and link them together, either manually or automatically via the options in the GE Digital APM system. Throughout this documentation, we use the term Reliability Distribution Analysis to mean the combination of the Reliability Distribution record and all the records that are linked to it.

Reliability Analytics URLs

There is one URL route associated with Reliability Analytics: reliability. The following table describes the various paths that build on the route, and the elements that you can specify for each.

Tip: For more information, refer to the URLs section of the documentation.
ElementDescriptionAccepted Value(s)Notes

reliability/dashboard/<EntityKey>: Displays the Reliability Analytics overview page.

<EntityKey>Specifies Asset context for the RA Overview page.

Any numeric Entity Key that corresponds to an existing Asset.

Entering 0 for an Entity Key displays a generic RA overview.
reliability/automation/<EntityKey>/summary: Displays Automation rules.
<EntityKey>Specifies which Reliability Automation Rules you want to view.The Entity Key of the desired automation rule.This parameter is required and it refers to the analysis. Without the Entity Key, then the URL will not be supported.
reliability/probability/<EntityKey>/<WorkspaceName>: Displays Probability Distribution Analyses.
<EntityKey>Specifies which Probability Distribution you want to view.The Entity Key of the desired analysis.This parameter is required and it refers to the analysis. Without the Entity Key, then the URL will not be supported.
<WorkspaceName>Specifies the type of Probability Distribution Analysis information you want to view.cdfplotDisplays the CDF Plot workspace.
pdfplotDisplays the PDF Plot workspace.
probabilityplotDisplays the Probability Plot workspace.
summaryDisplays the Analysis Summary workspace.
reliability/production/<EntityKey>/<WorkspaceName>: Displays Production Analyses.
<EntityKey>Specifies which Production Analysis you want to view.The Entity Key of the desired analysis.This parameter is required and it refers to the analysis. Without the Entity Key, then the URL will not be supported.
<WorkspaceName>Specifies the type of Production Analysis information you want to view.overviewDisplays the Analysis Summary workspace.
production-plotDisplays the Production Data workspace.
reliability/distribution/<EntityKey>/<WorkspaceName>: Displays Reliability Distribution Analyses.
<EntityKey>Specifies which Reliability Distribution Analysis you want to view.The Entity Key of the desired analysis.This parameter is required and it refers to the analysis. Without the Entity Key, then the URL will not be supported.
<WorkspaceName>Specifies the type of Reliability Distribution Analysis information that you want to view.cdfplotDisplays the CDF Plot workspace.
failureprobabilityDisplays the Failure Probability workspace.
failurerateplotDisplays the Failure Rate Plot workspace.
pdfplotDisplays the PDF Plot workspace.
pmoptimizationDisplays the PM Optimization workspace.
probabilityplotDisplays the Probability Plot workspace.
summaryDisplays the Analysis Summary workspace.
reliability/growth/<EntityKey>/<WorkspaceName>: Displays Reliability Growth Analyses.
<EntityKey>Specifies which Reliability Growth Analysis you want to view.The Entity Key of the desired analysis.This parameter is required and refers to the analysis. Without the Entity Key, the URL will not be supported.
<WorkspaceName>Specifies the type of Reliability Growth Analysis information that you want to view.failurerateplotDisplays the Failure Rate Plot workspace.
failuresplotDisplays the Cumulative Failures Plot workspace.
mtbfplotDisplays the MTBF Plot workspace.
summaryDisplays the Analysis Summary workspace.

reliability/spares/<EntityKey>/<WorkspaceName>: Displays Spares Analyses.

reliability/spares/<EntityKey>/spareoverview/<SpareEntityKey>: Displays a Spare.

reliability/spares/<EntityKey>/spareapploverview/<SpareEntityKey>/<SpareApplicationEntityKey>: Displays Spare Application.

<EntityKey>Specifies which Spares Analysis you want to view.The Entity Key of the desired analysis.This parameter is required and refers to the analysis. Without the Entity Key, the URL will not be supported.
<WorkspaceName>Specifies the type of Spares Analysis information you want to view.overviewDisplays the Analysis Summary workspace.
<SpareEntityKey>Specifies which Spare you want to view.The Entity Key of the desired Spare.

This parameter is required and refers to the Spare. Without the Spare Entity Key, the URL will not be supported.

Displays the Spare workspace.

<SpareApplicationEntityKey>Specifies which Spare Application you want to view.The Entity Key of the desired Spare Application.

This parameter is required and refers to the Spare Application. Without the Spare Application Entity Key, the URL will not be supported.

Displays the Applications section.

reliability/system/<EntityKey>/<WorkspaceName>: Displays System Reliability Analyses.

reliability/system/<EntityKey>/scenario/<ScenarioEntityKey>: Displays System Reliability Scenarios.

<EntityKey>Specifies which System Reliability Analysis you want to view.The Entity Key of the desired analysis.This parameter is required and refers to the analysis. Without the Entity Key, the URL will not be supported.
  simulationDisplays the Simulation Results workspace.
  summaryDisplays the Analysis Summary workspace.
<ScenarioEntityKey>Specifies which System Reliability Scenario you want to view.The Entity Key of the desired Scenario.Displays the Scenario workspace.
Table 1. Example URLs
Example URLDestination

reliability/dashboard/0

Reliability Analytics Overview page.
reliability/automation/3228505/summary Automation page with the Entity Key 3228505.
reliability/probability/3228505/summary Probability Distribution page, displaying the Analysis Summary workspace with the Entity Key 3228505.
reliability/production/4924257/overview Production Analysis page, displaying the Analysis Summary workspace with the Entity Key 4924257.
reliability/distribution/2842417/summary Reliability Distribution page, displaying the Analysis Summary workspace with the Entity Key 2842417.
reliability/growth/2842411/summary Reliability Growth page, displaying the Analysis Summaryworkspace with the Entity Key 2842411.
reliability/spares/2841956/overview Spares Analysis page, displaying the Summary workspace with the Entity Key 2841956.
reliability/spares/2841956/spareoverview/2841957 Spare Analysis Summary workspace with the Entity Key 2841956 and the Spare Entity Key 2841957.

reliability/spares/2841956/spareapploverview/2841957/2841959

Spare Critical Applications workspace with the Entity Key 2841956, the Spare Entity Key 2841957 and the Spare Application Key 2841959.

reliability/system/3352307/summary

System Reliability page, displaying the Summary workspace with the Entity Key 3352307.

reliability/system/3352307/scenario/3352304

System Reliability Analysis page, displaying the Diagram workspace with the Entity Key 3352307 and the Scenario Entity Key 3352304.

System Code Tables Used by Reliability Analytics

The following table lists the System Code Tables that are used by Reliability Analytics.

Table ID

Table Description

Function

MI_ACTION_TYPEAction TypePopulates a list of options for the Action Type field in System Reliability records.
MI_CONDITION_MONITORING_TYPECondition Monitoring Type Populates a list of options for the Condition Monitoring Type field in System Reliability records.
MI_RATE_UNITSRate UnitsPopulates a list of Rate Unit options for multiple System Reliability records.
MI_TIMEANAL_TYPETime Analysis TypePopulates a list of options for the Time Analysis Type field in System Reliability Analysis Definition records.
MI_TIME_UNITSTime UnitsPopulates a list of Time Unit options for multiple System Reliability records.

About Results of a Reliability Distribution Analysis

After you have created a Reliability Distribution Analysis, the following options are available:

  • Analysis results can include confidence intervals and parameters for the selected Distribution and goodness of fit measures.
  • Distribution fitting can be done by Least Squares or Maximum Likelihood (MLE).
  • The four different types of Reliability plots (Probability of Failure, Failure Rate, Probability Density Function, and Cumulative Distribution Function) can be displayed. In addition, you can select between 2 and 10 Distribution Analyses and choose to view and compare all four of the plot types for the selected analyses using the Competing Failure Plots feature.
  • Reliability Distribution Analyses can support Failures without Replacement, which are needed to calculate reliability for heat exchangers, boiler tubes, piping, and other pieces of equipment where a repair does not necessarily involve changing the whole unit.
  • The Preventive Maintenance Optimization calculator can utilize the results of the Distribution Analysis and allow you to input the estimated costs of an unplanned repair versus a planned repair. Based on the MTBF and the ratio of unplanned cost to planned cost, the system calculates the optimal time to maintain equipment.
  • A Failure Probability calculator can utilize the results of a Distribution Analysis; based on MTBF, Beta, and the last Failure Date, the system calculates the probability of equipment failure at the time in the future that you specify. The system also provides the capability to calculate future life based upon a failure probability that the user specifies.
  • Based on the analysis results, you can generate recommendations for the maintenance and reliability activities that should be executed in the future to maintain best practices in your organization.

Time to Failure

The most important piece of data for distributions is Time to Failure (TTF), which is also sometimes known as Time to Event (TTE) or Time Between Failures (TBF).

Suppose that you have the following timeline, where each number represents the amount of time that passes between failures.

Installation 511233816224432 Out of Service

You could fit a Weibull Distribution to this data. A Probability Density Function (PDF) is similar to a histogram of the raw TTF data:

The distribution shows:

  • One failure occurring between time 0 and 10.
  • Two failures occurring between time 11 and 20.
  • Three failures occurring between time 21 and 30.
  • Two failures occurring between time 31 and 40.
  • One failure occurring between time 41 and 50 (Out of service).

This type of graph counts the number of failures between certain periods. This creates a curve, which you can examine and ask: At 15 time units, how many failures can I expect to have? The answer: Between two and three failures. You are distributing the failures over the life of the equipment so that at any given point in that life, you can calculate the probability that the equipment will fail. This calculation is generated based on the area under the curve, as shown in the previous graphic. In practice, the PDF is adjusted in such a way that the area under the curve is exactly one, and the number on the y-axis represents the number of failures per time unit.

You select your historical data: other pieces of equipment by the same manufacturer, other pieces of equipment in the same location, other pieces of equipment of the same type, etc. For example, suppose that you want to buy a new pump. You could perform a Distribution Analysis on the other pumps of the same model to predict the reliability of the new pump.

Asset Data for a Reliability Distribution Analysis 

The Assets section provides following information for each piece of equipment belonging to a Reliability Distribution Analysis:

This family is enabled for site filtering, which means that records in this family can be assigned to a specific site, and will then only be accessible to users who are assigned to the same site and have the appropriate license and family privileges. For more information, refer to the Site Filtering section of the documentation.

Field CaptionData TypeDescriptionBehavior and Usage
Asset ID CharacterThe ID of the piece of equipment that failed. This is a required field.You can enter the ID manually.
Datasheet CharacterA link that displays the datasheet associated with the failure event. This column appears only when a query is the data source for the analysis.
Future Age NumericThe future age of the piece of equipment. The value for this field is calculated by the GE Digital APM system by adding the specified operating time to the current age of the piece of equipment and is read-only.
Future Failure Probability NumericThe future probability of equipment failure. The value for this field is calculated by the GE Digital APM system using the specified operating time and is read-only. You can specify the future time to calculate the future probability of failure.
Installation Date Date The date on which the piece of equipment was installed.You can enter or select a date.
Last Replacement Date DateThe last date on which the failed piece of equipment was replaced.

The value for this field is calculated by the GE Digital APM system and is read-only.

This field does not appear in the grid.

Number of Subcomponents NumericThe number of subcomponents contained by the piece of equipment that is selected in the Asset ID column. A piece of equipment can contain multiple subcomponents, such as tubes in a heat exchanger bundle. This field is displayed in the grid only when the failure type is Failures Without Replacements.
Present Age NumericThe current age of the piece of equipment. The value for this field is calculated by the GE Digital APM system and is read-only.
Present Failure Probability NumericThe current probability of failure for each piece of equipment. The value for this field is calculated by the GE Digital APM system based on the present age of the piece of equipment and is read-only.

About Data Mapped to the Baseline Analysis <Source Type> Window

When you create a Reliability Distribution Analysis from a query or dataset, the Reliability Distribution Builder window will prompt you to map values from columns in the query or dataset to certain values in the Reliability Distribution Analysis. The values that you select to map on the Select Failure Fields and Provide Information For Downtime screens in the Reliability Distribution Builder window will then appear in the associated columns in the Baseline Analysis <Source Type> window. The <Source Type> is Query or Dataset on which your analysis is based.

Note: If the analysis is based on a query or a dataset and contains additional columns that are not mapped to columns in the analysis dataset, those columns will appear in the Baseline Analysis <Source Type> window with the column name in parentheses.

This family is enabled for site filtering, which means that records in this family can be assigned to a specific site, and will then only be accessible to users who are assigned to the same site and have the appropriate license and family privileges. For more information, refer to the Site Filtering section of the documentation.

Details

The following table displays which columns are mapped from fields in the Reliability Distribution Builder window to columns in the Baseline Analysis <Source Type> window:

Reliability Distribution Builder Screen Reliability Distribution Builder Field Baseline Analysis <Source Type> Window Column
Provide Information for Downtime Downtime Field Downtime
Select Failure Fields Asset ID Asset ID
Select Failure Fields Failure Date Failure Date
Select Failure Fields Number of Failures Number of Failures
Select Failure Fields Replacement? Replaced
Select Failure Fields Installation DateInstallation Date
Select Failure Fields Number of Subcomponents Number of Subcomponents

Failure Data for a Reliability Distribution Analysis

The Failures section provides following information for each failure belonging to a Reliability Distribution Analysis:

This family is enabled for site filtering, which means that records in this family can be assigned to a specific site, and will then only be accessible to users who are assigned to the same site and have the appropriate license and family privileges. For more information, refer to the Site Filtering section of the documentation.

Field CaptionData TypeDescriptionBehavior and Usage
Asset ID CharacterThe ID of the piece of equipment that failed. This value is mapped from a query or dataset. For manually entered data, you can select the first cell in the column and select the Asset ID belonging to the piece of equipment that you added in the Assets section or enter the ID in the cell.
Censored Logical

A value that indicates whether or not the datapoint is excluded.

Select the check box to censor the data in the selected row.
Datasheet CharacterA link that displays the datasheet associated with the failure event. This column appears only when a query is the data source for the analysis.
Downtime NumericThe amount of corrective maintenance time for the piece of equipment after the failure occurs. This value is mapped from a query or dataset or manually entered when you create the analysis.
Failure Date DateThe date on which the failure of the piece of equipment occurred. This value is mapped from a query or dataset or manually entered when you create the analysis and is required.
Ignore LogicalSpecifies whether the data in the associated row is excluded or included from analysis calculations.When selected, excludes the data in the associated row from the analysis calculations and plots. When cleared, includes the data in the associated row in the analysis calculations.
Number of Failures NumericThe number of failed elements at each failure event. This column appears only when the failure type is Failures Without Replacements. This value is mapped from a query or dataset or manually entered when you create the analysis.
Remarks CharacterAdditional comments about the failure. You can enter a value in this column manually.
Replaced BooleanA value that indicates whether replacements were made following each equipment failure. A replacement causes the entire piece of equipment to be renewed, thus resetting calculation of the time to failure. This column appears only when the failure type is Failures Without Replacements. This value is mapped from a logical field in a query or dataset or manually entered when you create the analysis.
TTF NumericThe Time to Failure is the duration of time from when the piece of equipment is placed into service until it fails. TTF may be expressed in terms of days, hours, cycles, units processed, etc. TTF values are calculated by the GE Digital APM system based on the failure dates and are shown in gray to indicate that they are read-only.

Distribution Analysis Records

A Distribution record stores information about the distribution of failures over the life of equipment. The following table provides an alphabetical list and description of the fields that exist for the Distribution family, which appear by default on the Distribution, Exponential, Normal, Lognormal, and Weibull datasheets. The information in the table reflects the baseline state and behavior of these fields. This list is not comprehensive.

This family is enabled for site filtering, which means that records in this family can be assigned to a specific site, and will then only be accessible to users who are assigned to the same site and have the appropriate license and family privileges. For more information, refer to the Site Filtering section of the documentation.

Field Caption Data Type Description Behavior and Usage

Analysis ID

Character

The name of the Reliability or Probability Distribution Analysis associated with the Distribution record.

This field is populated automatically with the value in the Analysis ID field of the Reliability or Probability Distribution record to which the Distribution record is linked.

Analysis Name Character

The name of the Reliability or Probability Distribution Analysis.

You can enter the name manually. This field is required.
Asset ID TextFields that describe a piece of equipment, such as Equipment ID.

You can select the value that describes a piece of equipment for which you are performing an analysis. This field is required. Reliability Analysis can be conducted on any number of equipment.

Confidence Level

Number

Indicates the percentage of uncertainty in a Goodness of Fit method.

The confidence level is used to indicate that you want the model to fit with a particular level of certainty. This value is set to 90 by default. You can enter a value between one (1) and one hundred (100).

Description TextThe description of the Reliability or Probability Distribution Analysis.You can enter the description manually. This field is optional.
Downtime Text

Field that contains the specific period during which the piece of equipment is not operating during the analysis period.

This field is optional but must be numeric. If this information is available, it can be used to make the estimation more accurate. Fields like "return to service date" or "date repaired" can be used to estimate downtime.

Failure Date Text

The field that contains the last date on which the piece of equipment failed. This data can have many different descriptions (e.g., Out of Service Date, Shutdown Date, or Failure Date).

This is field is required.

Failure Mode Text

The mode of failure.

Sometimes users put failed parts in this field, or even a description like "worn out" or "broke down." These descriptions can be very useful when deciding to include or not include a particular failure in the failure history for purposes of censoring.

This field is not available on the datasheet.

Fit Method

Character

The type of method used to estimate distribution parameters.

In a Reliability Distribution Analysis, this value is displayed in the Distribution Options section in the Time to Repair Distribution and Time to Failure Distribution sections. In a Probability Distribution Analysis, this value is displayed in the Distribution Options section on the Analysis Summary workspace. The method of fit for a Distribution Analysis can be either Least Squares or Maximum Likelihood Estimators (MLE).

Installation Date Character

The field that contains the date on which the piece of equipment was installed.

You can select a date field. This field is optional.

Mean

Number

The average point of the distribution. This is not necessarily the same as the average point of the dataset.

This value is calculated by the GE Digital APM system and is populated automatically. The value is calculated using distribution parameters, which vary depending on the type of distribution. For example, for a Weibuill distribution, this value is calculated using the following formula:

Median

Number

The middle point of the distribution. This is not necessarily the same as the middle point of the dataset.

This value is calculated by the GE Digital APM system and is populated automatically. The value is calculated using distribution parameters, which vary depending on the type of distribution. For example, for a Weibuill distribution, this value is calculated using the following formula:

Passed

Logical

Indicates whether the model passed the Goodness-of-Fit test or not.

A value of Yes or No that indicates if the fit test was successful (the distribution fits the data based on the test performed).

If the P-value is less than or equal to 1 minus the confidence level, the goodness of fit test has failed and this value is set automatically to No by the GE Digital APM system. Otherwise, the goodness of fit test is successful and this value is set to Yes.

Published

Logical

Indicates whether the analysis has been published.

If the analysis has been published, this value is set to True. If the analysis has not been published, this value is set to False.

P-Value

Number

The probability that the GOF Statistic is greater than the value in the Statistic field.

This value is calculated by the GE Digital APM system. The value used to determine whether the analysis passed the goodness of fit (GOF) test. The P-value is interpreted as the probability that the test statistic is due to random error. Typically, the higher the P-value, the more likely the model is appropriate and the more likely that the fit will pass the test.

Random Variable

Character

The name of the independent variable, which associates a numerical value with every event (e.g., Downtime).

This value is only populated for a Distribution record associated with a Probability Distribution Analysis. This value is populated automatically with the value you specify in the Random Variable box on the Specify the Random Variable window.

R-Squared

Number

The R-Squared Correlation Coefficient, which describes the strength of a linear model.

This value is calculated by the GE Digital APM system and populated automatically. This value measures how closely the points fall to the least squares line, providing an indication of how confident one can be of predictions made with the line. An R-Squared value greater than 0.9 is considered a good fit for linear regression.

Standard Deviation

Number

The variability of the random variable around the mean.

This value is calculated by the GE Digital APM system and populated automatically.

Statistic

Number

A value that indicates the preciseness of the fit of the data to the model.

This value is calculated automatically by the GE Digital APM system. Typically, the lower the GOF Statistic, the better the fit.  

Time Units

CharacterTime units for downtime.

This field contains a list of the following values:

  • Hours

  • Days
  • Weeks
  • Months
  • Quarters
  • Years

The time units that you select here will apply to downtime only.

Units of Random Variable

Character

The time units associated with the independent variable.

This value is associated with the value in the Variable field. This value is only populated for a Distribution record associated with a Probability Distribution Analysis. This value is populated automatically with the value you specify in the Units box on the Specify the Random Variable window.

Reliability Recommendation Records

Recommendation records in Reliability Analytics store details of a recommendation and the progress associated with getting the recommendation approved and implemented. The following table provides an alphabetical list and description of the fields that exist for the Reliability Recommendation family. The information in the table reflects the baseline state and behavior of these fields. This list is not comprehensive.

This family is enabled for site filtering, which means that records in this family can be assigned to a specific site, and will then only be accessible to users who are assigned to the same site and have the appropriate license and family privileges. For more information, refer to the Site Filtering section of the documentation.

FieldData TypeDescriptionBehavior and Usage
Alert Assignee When Due?

Logical

An option that lets you send an alert to the person responsible for implementing the recommendation.

If this field is selected, the GE Digital APM system will send an alert to the person in the Assigned to Name field on the date defined in the Target Completion Date field.

This field is labeled Alert Responsible Party When Due? and is available on the Alert tab on the datasheet.

Analysis ID

Character

The ID of the analysis associated with the recommendation.

This field is populated automatically with the Record ID of the analysis to which the Reliability Recommendation record will be linked when it is saved.

Asset ID

Character

The ID for the Equipment associated with the recommendation.

You can define this field by selecting <insert ellipsis icon> and searching for the required Equipment. You can then selecting the Equipment, then select OK to link it to the Recommendation.

This field is labeled Equipment ID and is available on the General Information tab on the datasheet.

Assigned to Name

Character

The name of the person responsible for ensuring the recommendation is implemented.

This field contains a list of all Security Users in the database, presented in the following format:

<last name>, <first name>, <user ID>

This field is optional. You can select a user from the list.

This field is available on the General Information tab on the datasheet.

Author Name

Character

The name of the person proposing the recommendation.

You can select a team member from a list of current human resources.

This field is available on the General Information tab on the datasheet.

Business Impact

Character

The impact to the manufacturing process during the recommendation implementation.

You can choose this value from a list of the following options:

  • Safety

  • Environmental

  • Production

  • Economic

This field is available on the General Information tab on the datasheet.

Completed

Logical

Indicates that the recommendation is complete.

You can set this value to True to indicate that this recommendation is complete.

Completion Comments

Text

Details about the completed recommendation.

This field is required if the value in the Status field is Rejected, Cancelled,or Superseded.

This field is labeled Close-Out Comments and is available on the General Information tab on the datasheet.

Creation Date

Date

The date the recommendation was created.

This field is disabled and populated automatically with the date on which the RA Recommendation was created.

This field is available on the General Information tab on the datasheet.

Date Reviewed

Date

The date the recommendation status was changed to Reviewed.

This field is populated automatically with the current date when the Status field is updated to Reviewed.

Days before Due Date to be Notified

Number

The numbers of days prior to the target date that the email message should be sent.

This field is enabled only when the Alert Responsible Part When Due? field is set to True, in which case this field is required.

This field is labeled Days before Due Date to be Alerted and is available on the Alert tab on the datasheet.

Equipment Technical Number

Character

The technical number of the piece of equipment for which the recommendation is being made.

When you select a value in the Equipment ID field, this field is populated automatically with the value in the Equipment Technical Number field of the associated Equipment.

This field is labeled Technical Number and is available on the General Information tab on the datasheet.

Final Action Taken

Text

The actions taken to implement the recommendation.

You can define this field manually by typing a description of final actions in this field.

Final Approver Name

Character

The name of the person responsible for approving the recommendation and the associated cost.

This field contains a list of all Security Users in the database, presented in the following format:

<last name>, <first name>, <user ID>

You can select a user from the list.

Note: An email alert will be sent only if the user specified in the Final Approver Name field has logged in to GE Digital APM system.

This field is available on the General Information tab on the datasheet.

Frequency of Alert After Due Date

Character

The frequency after the target date that the alert will be resent.

This field is enabled only when the value in the Alert Responsible Part When Due? field is True, in which case this field is required, and you can choose a value from the list of following values:

  • Never

  • Daily

  • Weekly

  • Monthly

  • Yearly

This field is available on the Alert tab on the datasheet.

Functional Location ID

Character

The ID of the Functional Location that is either linked to the Equipment that appears in the Equipment ID field or linked separately to the RA Recommendation.

This value is populated automatically if a Functional Location exists and is linked to the Equipment that appears in the Equipment ID field. You can also select <insert ellipsis icon> to search for the desired Functional Location, select it. When you select OK, the Functional Location is linked to the RA Recommendation.

This field is available on the General Information tab on the datasheet.

Implemented Date

Date

The date the recommendation was implemented.

This field is populated automatically when the RA Recommendation is implemented. When this occurs, the field becomes disabled.

This field is available on the General Information tab on the datasheet.

Implementation Alert Text

Text

Text the user can add that will be sent in the body of the alert to the assignee to remind them the recommendation must be met by the target date.

You can type the text you wish to appear in the Alert email.

This field is available on the Alert tab on the datasheet.

Mandatory Date

Date

The date by which the recommendation must be implemented.

You can select a date using the Calendar tool.

This field is available on the General Information tab on the datasheet.

Recommendation Basis

Character

Background information about why the recommendation is being made.

The reason the recommended action is needed.

You can type any necessary background information in this field.

This field is available on the General Information tab on the datasheet.

Recommendation Closure Date

Date

The date the recommendation status is changed to Implemented, Rejected, or Superseded.

This field is populated automatically with the current date when the value in the status field is changed to Implemented, Rejected, or Superseded.

Recommendation Description

Text

A detailed description of the recommendation. 

You can type a description of the recommendation in this field.

This field is available on the General Information tab on the datasheet.

Recommendation Headline

Character

A brief summary of the recommendation. 

You can type a brief summary of the recommendation in this field.

This field is available on the General Information tab on the datasheet.

Recommendation ID

Character

The ID for the RA Recommendation.

This field is populated automatically with a unique name (e.g., REC_888) when the recommendation is created. You can change this value if desired.

This field is available on the General Information tab on the datasheet.  

Recommendation Priority

Character

A value that represents the priority or criticality level of the recommendation for implementation.

You can chose from a list of the following values:

  • High

  • Medium

  • Low

This field is available on the General Information tab on the datasheet.

Reevaluate?

Logical

Indicates whether team members should evaluate the recommendation again.

If this check box is selected, an alert will be sent to users specified in the Reevaluation Notification List field.

This field is available on the Alert tab on the datasheet.

Reevaluation Alert Body Text

Text

The message text in the body of the reevaluation alert, which will be sent to users in the reevaluation notification list.

This field is enabled only when the Reevaluate? field check box is selected. Then the field is required.

This field is available on the Alert tab on the datasheet.

Reevaluation Notification List

Character

Individuals that will be sent to the reevaluation alert.

This field is enabled only when the Reevaluate? field is set to True. Then the field is required. You can select from a list of names with Human Resources.

This field is labeled Reevaluation Alert List and is available on the Alert tab on the datasheet.

Reevaluation Date

Date

The date on which an alert is sent out to tell the alert recipient to re-evaluate the recommendation.

This field is enabled only when the Reevaluate? field is set to True. Then the field is required. You can select a date using the Calendar tool.

This field is available on the Alert tab on the datasheet.

Required Equipment Status

Character

The operating status the piece of equipment must be under, in order for the recommendation to be implemented.

You can choose from a list of the following values:

  • On-line

  • Off-line

  • Not Applicable

This field is available on the General Information tab on the datasheet.

Reviewer Name

Character

The first and last name of the person who should review the information in the Recommendation before the recommended action is performed.

This field contains a list of all Security Users in the database, presented in the following format:

<last name>, <first name>, <user ID>

You can select a user from a list of security users in the database.

This field is available on the General Information tab on the datasheet.

Status

Character

The status of the recommendation.

You can choose from a list of the following values:

  • Approved

  • Created

  • Pending Review

  • Reviewed

  • Rejected

  • Canceled
  • Superseded

  • In Progress

  • Implemented

When the is created, the field is set to Created, but can be modified if needed. This field is required.

You can send an alert only if the Status field is set to Approved or In Progress value.

This field is available on the General Information tab on the datasheet.

Status Changed By

Character

The ID of the user who last changed value in the Status field.

This field is populated automatically when the Status field is updated.

This value does not appear on the datasheet by Work default.

Status Changed by Name

Character

The name of the person who last changed the Status field.

This field is populated automatically when the Status field is updated.

This value does not appear on the datasheet by default.

Status Date

Date

The date the Status field was most recently changed.

This field is populated automatically with the current date when the Status field is updated.

This value does not appear on the datasheet by default.

Target Completion Date

Date

The date the recommendation is intended to be implemented.

You can select a date using the Calendar tool.  This field is required.

This field is available on the General Information tab on the datasheet.

Work Order Number

Character

The ID of the work order arising from the work request.

This field is populated automatically after a notification has been created in SAP.

This value does not appear on the datasheet by default.

Work Request Equipment

Character

The ID of the Equipment in SAP that is associated with the SAP Notification that was created.

This field is populated automatically after a notification has been created in SAP.

This field is available on the General Information tab on the datasheet.

Work Request Functional Location

Character

The ID of the Functional Location in SAP that is associated with the SAP Notification that was created.  

This field is populated automatically after a notification has been created in SAP.

This field is available on the General Information tab on the datasheet.

Work Request Reference

Character

The ID of the SAP Notification.

This field is populated automatically after a notification has been created in SAP.

This field is available on the General Information tab on the datasheet.

Reliability Distribution Folder

The Catalog folder \\Public\Meridium\Modules\Reliability Manager\Reliability Distribution contains the following items.

Item Name

Behavior and Usage

Queries Subfolder
TileListOfReliabilityDistribution

Returns the list of Reliability Distribution Analyses in the Reliability Distribution list on the RA Overview page.